US4547023A - Circulating roller bearing - Google Patents

Circulating roller bearing Download PDF

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Publication number
US4547023A
US4547023A US06/593,290 US59329084A US4547023A US 4547023 A US4547023 A US 4547023A US 59329084 A US59329084 A US 59329084A US 4547023 A US4547023 A US 4547023A
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US
United States
Prior art keywords
bearing
roller
circulating
raceway
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/593,290
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English (en)
Inventor
Albrecht Blatter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
W SCHNEEBERGER AG A CORP OF SWITZERLAND
W SCHNEEBERGER AG MASCHINENFABRIK
Original Assignee
W SCHNEEBERGER AG MASCHINENFABRIK
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Assigned to W. SCHNEEBERGER AG, A CORP OF SWITZERLAND reassignment W. SCHNEEBERGER AG, A CORP OF SWITZERLAND ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BLATTER, ALBRECHT
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Publication of US4547023A publication Critical patent/US4547023A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0614—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only
    • F16C29/0616—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load essentially in a single direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0614—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only
    • F16C29/0616—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load essentially in a single direction
    • F16C29/0619—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load essentially in a single direction with rollers or needles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • F16C33/3706—Loose spacing bodies with concave surfaces conforming to the shape of the rolling elements, e.g. the spacing bodies are in sliding contact with the rolling elements

Definitions

  • the present invention broadly relates to roller or ball bearings and, more specifically, pertains to a new and improved construction of a circulating roller or ball bearing intented to cooperate with a bearing surface of a further machine component.
  • the circulating roller bearing contains a housing which comprises a bearing block incorporating a roller or ball raceway having a bearing portion and a circulating portion in which roller members are sequentially arranged to roll between the raceway and the bearing surface of the other machine component to form supporting or bearing means therebetween.
  • roller or ball bearings-- also referred to as linear bearings--are manufactured with stringent requirements of precision and at corresponding expense. All components thereof must be highly precise in their inter-relationships.
  • Another and more specific object of the present invention aims at providing a new and improved construction of a circulating roller or ball bearing of the previous mentioned type which can be cheaply manufactured without sacrificing precision.
  • Yet a further specific object of the present invention aims at providing a new and improved construction of a circulating roller or ball bearing of the character described which is relatively simple in construction and design, extremely economical to manufacture, highly reliable in operation, not readily subject to breakdown or malfunction and requires a minimum of maintenance and servicing.
  • the circulating roller bearing of the present invention is manifested by the features that the bearing portion of the roller raceway is arranged in a plane extending substantially parallel to a further plane in which the circulating portion of the roller raceway is arranged, such circulating portion of the roller raceway being formed in the bearing block and being interrupted by the bearing portion of the roller raceway.
  • the bearing block can be made of a suitable plastic material, such as polyamide, and, in particular, can be injection molded in a single piece, so that its manufacture in large quantities is very economical.
  • the usual precision of plastic injection molding such as is employed for injection-molded engineering articles, is sufficient.
  • the high degree of accuracy required for precise cooperation with other machine components can be limited to the bearing portion of the roller raceway and the roller members themselves.
  • bearing raceway insert or bearing portion of the roller raceway extends through the bearing block, then its mounting surface, which desirably extends at a calibrated distance or spacing from the raceway bearing surface, can be intimately mounted on a further machine component with precision while the roller members rolling on the bearing portion of the roller raceway rollingly and bearingly engage a roller bearing surface of another machine component.
  • Roller members of correspondingly precise calibration are commercially manufactured and available.
  • only the bearing raceway insert need be manufactured precision. Since the latter is small and of simple configuration and uniform dimension, it presents no difficulties of fabrication, including hardening.
  • the bearing raceway insert or bearing portion of the roller raceway preferably protrudes from the plane of the circulating portion of the roller raceway, which assures that only unloaded roller members travel in the circulating portion of the roller raceway. This has the advantage that no stringent requirements need be imposed upon the plastic or other material.
  • transition structures are provided on the bearing raceway insert in the form of sloping ramps. The manufacture of such ramp surfaces requires no special precision.
  • roller members employed have the form of cylindrical rollers, it is preferable to provide spacer or separator members, especially in view of the fan-like diversion or guiding of such rollers in the diverting or turning regions of the circulating roller raceway.
  • spacer or separator members are not necessary for roller members having the form of spherical ball bearings, but could be provided if desired.
  • Spacer or separator members between roller members should preferably comprise concave and mutually opposing roller guide surfaces.
  • Such roller guide surfaces preferably each comprise a portion or region extending substantially parallel to a corresponding such portion or region of the opposing roller guide surface for guiding the rollers along the straight regions of the roller raceway and a portion or region converging in wedge-shape fashion toward a corresponding such portion or region of the opposing roller guide surface for guiding the roller members in their fan-shaped turning path.
  • the transition between these portions or regions of the roller guide surfaces can be relatively angular, but a certain degree of rounding or curvature for transitional guidance should nevertheless be provided.
  • roller members and, if provided, the spacer or separator members be prevented from falling or jumping out of the circulating raceway while still forming the latter as an open channel
  • raceway with correspondingly protruding edges or lips at its terminal edges.
  • protruding edges or lips can be wedge-shaped in cross-section, so that they interact well with the form of a spherical ball bearing roller member or with the form of a cylindrical roller bearing roller member having a chamfer at one end and a domed surface at the other.
  • roller members and, if provided, the spacer or separator members can be pressed into the channel opening of the circulating raceway by elastically deforming the abovementioned protruding edges or lips which considerably facilitates assembly.
  • roller members and, if provided, the spacer or separator members into the raceway can also take place through the opening into which the bearing raceway insert is subsequently installed.
  • the latter may also be retained in place by elastic deformation of the plastic material.
  • the preferably plastic bearing block can be so formed that it is capable of engaging a further machine component, e.g. in a corresponding recess, by means of elastic deformation or it can be provided with holes or inserts serving for mounting by means of threaded members.
  • FIG. 1 is a side view of a circulating bearing
  • FIG. 2 is an end view of the bearing according to FIG. 1;
  • FIG. 3 is a schematic plan view in the direction of arrow 3 in FIG. 3;
  • FIG. 4 is a schematic cross section on the line 4--4 in FIG. 3;
  • FIG. 5 is a partial schematic longitudinal section on line 5--5 in FIG. 3;
  • FIG. 6 is a schematic perspective view of a spacer member at an enlarged scale
  • FIG. 7 is a schematic perspective view of a roller member at an enlarged scale
  • FIG. 8 is a schematic partial plan view of a circulating roller bearing containing ball roller members.
  • the illustrated exemplary embodiment of the circulating roller or ball bearing 1 will be seen to comprise a housing 2 including a bearing block 3, which may be of plastic, and a bearing raceway insert 4.
  • the bearing block 3 is provided with a channel-shaped circulating portion 30 of a roller raceway which comprises inwardly protruding edges or lips 31 at its terminal edges to prevent cylindrical roller members 5 and spacer or separator members 6, or alternatively spherical ball roller members 7, circulating in the raceway from falling or jumping out.
  • the rolling surface of the channel-shaped raceway may be formed to have a groove 65 for engaging the spherical ball roller members 7, such as a cylindrical or V-groove. For engaging substantially cylindrical roller members, it is preferably flat-bottomed.
  • the bearing block 3 is provided with an opening or aperture 32 for accommodating the bearing raceway insert 4 with a press fit and into which the bearing raceway insert 4 is forcibly pressed.
  • Mounting holes 33 are also provided.
  • the bearing raceway insert 4 has two precision surfaces located at a calibrated distance or spacing 40 from one another, i.e. the bearing raceway surface 41 with its entry and exit ramps 42 and a mounting surface 43 opposite and parallel thereto.
  • the bearing raceway surface 41 protrudes from the plane of the circulating raceway 30 and communicates therewith by the sloping ramp surfaces 42.
  • a roller bearing surface 10 of another machine component is indicated in broken lines to demonstrate that only the calibrated distance or spacing 40 of the bearing raceway insert 4 and the diameter of the roller members 5 or ball rollers 7 need be precise, since a further machine component 11 can be in intimate contact with the mounting surface 43.
  • roller members 5 are provided with a slight chamfer 50 at their interior or central end faces so that they cooperate well with the protruding edges or lips 31 of the raceway channel while they are provided with a domed surface 51 at their external or peripheral end faces to minimize the guiding friction at the outer surface of the channel-shaped raceway and to eliminate interference therewith in the turning or diverting portions 34 of the circulating roller raceway 30.
  • spherical ball bearing members 7 are inherently domed and therefore cooperate well with the protruding edges or lips 31 and maintain themselves in mutually constant center-to-center spacing in the turning or diverting regions 34 of the roller raceway.
  • the cylindrical roller members 5 need the spacer or separator members 6.
  • the roller guide surfaces 60 of the spacer or separator members 6 guide the cylindrical roller members 5 in the substantially straight portion 35 of the circulating roller raceway 30 with their parallel portions or regions 61 and in the turning and diverting portions 34 of the circulating roller raceway 30 with their converging portions or regions 62.
  • An arris or corner region 63 can be formed more roundedly than is shown in the drawings. This arris or corner region 63 guides the roller members in the transition region between the straight path and the turning or diverting path.
  • the external or peripheral surface 64 is cylindrically formed to reduce friction.
  • the exemplary embodiment of the circulating roller or ball bearing 1 can be employed in many different ways. It is suitable for practically all forms of guidance, e.g. columns of rectangular cross-section, round columns, prisms etc.
  • the circulating roller bearing can be inserted into a recess or fastened through holes 33 without requiring a high degree of precision, since only the dimensions of the bearing raceway insert 4 and of the roller members 5 or 7 are determinant and the remaining structure requires only moderate precision.
  • spherical ball bearings will be cheaper than cylindrical roller bearings, since the spacer or separator members 6 may be omitted.
  • ball bearings cannot be as heavily loaded as roller bearings. In either case, an economically advantageous and suitably precise guidance means can be produced.
  • the circulating roller bearing can be assembled by introducing the rollers 5 or the balls 7 and the spacer or separator members 6 through the opening or aperture 32 before pressing in the bearing raceway insert 4 or may be introduced through the open side of the channel-shaped roller raceway 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Bearings For Parts Moving Linearly (AREA)
US06/593,290 1983-04-18 1984-03-23 Circulating roller bearing Expired - Fee Related US4547023A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2060/83 1983-04-18
CH2060/83A CH660215A5 (de) 1983-04-18 1983-04-18 Rollenumlauflager.

Publications (1)

Publication Number Publication Date
US4547023A true US4547023A (en) 1985-10-15

Family

ID=4224974

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/593,290 Expired - Fee Related US4547023A (en) 1983-04-18 1984-03-23 Circulating roller bearing

Country Status (5)

Country Link
US (1) US4547023A (de)
JP (1) JPS6034513A (de)
CH (1) CH660215A5 (de)
DE (1) DE3324840A1 (de)
FR (1) FR2544417B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687345A (en) * 1985-07-16 1987-08-18 Nippon Thompson Co., Ltd. Linear motion roller bearing assembly having a roller separator
US5416298A (en) * 1990-11-23 1995-05-16 Zed Instruments Limited Laser engraving apparatus
US6398417B1 (en) * 1999-11-16 2002-06-04 Hiroshi Teramachi Rolling member
US6619845B2 (en) * 2000-03-21 2003-09-16 Thk Co., Ltd. Roller retainer, direct-acting guide device and roller screw using the roller retainer
US6896414B2 (en) 2000-01-25 2005-05-24 Hiroshi Teramachi Ball roller
CN103511576A (zh) * 2012-06-29 2014-01-15 上银科技股份有限公司 具有间隔子的滚柱螺杆
US20140016890A1 (en) * 2012-07-16 2014-01-16 Jonus Liu Bearing device for motion guide device
TWI463083B (zh) * 2012-06-26 2014-12-01 Hiwin Tech Corp Roller screw with spacer
TWI470156B (zh) * 2011-04-29 2015-01-21 Hiwin Tech Corp Roller screw with spacer
USD764555S1 (en) * 2013-11-21 2016-08-23 Ergotron, Inc. Recirculating bearing
USD780817S1 (en) 2013-11-21 2017-03-07 Ergotron, Inc. Mounting fixture

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233158Y2 (de) * 1985-02-15 1987-08-25
EP0211243B1 (de) * 1985-08-02 1990-01-31 Deutsche Star GmbH Wälzlager für Linearbewegungen
DE3620571C2 (de) * 1986-06-19 2000-10-05 Rexroth Star Gmbh Linearrollenlager
JPS62159811A (ja) * 1985-12-30 1987-07-15 Nippon Thompson Co Ltd Ａｆ−ｆ面円筒ころを使用した直線運動用ころ軸受
JPH0647493B2 (ja) * 1990-06-11 1994-06-22 品川白煉瓦株式会社 マグネシア・アルミナ系スピネル質原料
US5171724A (en) * 1990-06-11 1992-12-15 Shinagawa Refractories Co., Ltd. Magnesia-alumina type spinel clinker and method of producing refractory by using same
DE4022168C2 (de) * 1990-07-12 1994-06-23 Ina Lineartechnik Ohg Linearlager
DE4318427C2 (de) * 1993-06-03 2001-05-31 Schaeffler Waelzlager Ohg Wälzkörperumlauflager
US6364086B1 (en) 1998-05-29 2002-04-02 Rexroth Star Gmbh Chain of rolling elements chain arrangement
JP4051845B2 (ja) * 2000-01-13 2008-02-27 日本精工株式会社 直動案内軸受装置
DE20101760U1 (de) 2001-02-01 2002-06-13 Rexroth Star Gmbh Wälzkörperkette
DE10322006A1 (de) * 2003-05-16 2004-12-02 Ina-Schaeffler Kg Rollenumlaufeinheit eines Linearlagers
DE102023105685A1 (de) 2023-03-08 2024-09-12 Carl Mahr Holding Gmbh Messgerät und Verfahren zur Bestimmung eines Messwerts an einem Objekt

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466101A (en) * 1965-10-23 1969-09-09 Arthur F Hudson Bearing
US3937532A (en) * 1974-04-03 1976-02-10 Industriewerk Schaeffler Ohg Novel recirculating bearing
US4025995A (en) * 1973-01-19 1977-05-31 Thomson Industries, Inc. Linear motion ball bearing assembly and ball conforming shaft
US4201424A (en) * 1977-10-13 1980-05-06 Skf Kugellagerfabriken Gmbh Rolling bearing having two-sided race rails

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE256740C (de) *
GB696448A (en) * 1950-03-09 1953-09-02 Harry Sigurd Valdemar Jaerund Improvements relating to bearings
DE866278C (de) * 1950-03-09 1953-02-09 Harry Sigurd Valdemar Jaerund Stuetzlager
SE387417B (sv) * 1975-01-22 1976-09-06 Skf Nova Ab Kulbussning for linjerrorelse
DE2620864A1 (de) * 1976-05-11 1977-11-24 T I P Tech Ind Und Produktbera Waelzelement fuer linearbewegungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466101A (en) * 1965-10-23 1969-09-09 Arthur F Hudson Bearing
US4025995A (en) * 1973-01-19 1977-05-31 Thomson Industries, Inc. Linear motion ball bearing assembly and ball conforming shaft
US3937532A (en) * 1974-04-03 1976-02-10 Industriewerk Schaeffler Ohg Novel recirculating bearing
US4201424A (en) * 1977-10-13 1980-05-06 Skf Kugellagerfabriken Gmbh Rolling bearing having two-sided race rails

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687345A (en) * 1985-07-16 1987-08-18 Nippon Thompson Co., Ltd. Linear motion roller bearing assembly having a roller separator
US5416298A (en) * 1990-11-23 1995-05-16 Zed Instruments Limited Laser engraving apparatus
US6398417B1 (en) * 1999-11-16 2002-06-04 Hiroshi Teramachi Rolling member
US6896414B2 (en) 2000-01-25 2005-05-24 Hiroshi Teramachi Ball roller
US6619845B2 (en) * 2000-03-21 2003-09-16 Thk Co., Ltd. Roller retainer, direct-acting guide device and roller screw using the roller retainer
US6779923B2 (en) 2000-03-21 2004-08-24 Thk Co., Ltd. Roller retainer, direct-acting guide device and roller screw using the roller retainer
TWI470156B (zh) * 2011-04-29 2015-01-21 Hiwin Tech Corp Roller screw with spacer
TWI463083B (zh) * 2012-06-26 2014-12-01 Hiwin Tech Corp Roller screw with spacer
CN103511576A (zh) * 2012-06-29 2014-01-15 上银科技股份有限公司 具有间隔子的滚柱螺杆
CN103511576B (zh) * 2012-06-29 2015-12-16 上银科技股份有限公司 具有间隔子的滚柱螺杆
US20140016890A1 (en) * 2012-07-16 2014-01-16 Jonus Liu Bearing device for motion guide device
US9127715B2 (en) * 2012-07-16 2015-09-08 Hiwin Technologies Corp. Bearing device for motion guide device
USD764555S1 (en) * 2013-11-21 2016-08-23 Ergotron, Inc. Recirculating bearing
USD780817S1 (en) 2013-11-21 2017-03-07 Ergotron, Inc. Mounting fixture
USD815673S1 (en) 2013-11-21 2018-04-17 Ergotron, Inc. Recirculating bearing

Also Published As

Publication number Publication date
DE3324840A1 (de) 1984-10-25
JPS6034513A (ja) 1985-02-22
CH660215A5 (de) 1987-03-31
FR2544417A1 (fr) 1984-10-19
FR2544417B1 (fr) 1989-05-05

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AS Assignment

Owner name: W. SCHNEEBERGER AG, 4914 ROGGWIL, SWITZERLAND A CO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BLATTER, ALBRECHT;REEL/FRAME:004245/0135

Effective date: 19840319

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Effective date: 19891017

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Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362